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Shape of ferroelectric domains in and from defect/domain-wall interactions
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10.1063/1.3560343
/content/aip/journal/apl/98/9/10.1063/1.3560343
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/9/10.1063/1.3560343
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Domain shapes: (a) stoichiometric (Ref. 10), (b) stoichiometric (Ref. 10), (c) congruent (Ref. 9), and (d) congruent (Ref. 9). Optical images: (a) domain revealed by etching, (b) phase-contrast-microscopy, (c) and (d) piezoelectric force microscopy phase contrast images. Reproduced from Refs. 9 and 10 with permission.

Image of FIG. 2.
FIG. 2.

(a) Comparison of domain wall energies in stoichiometric and calculated with DFT. (b) The predicted domain wall energies as a function of atomic fraction of Nb or Ta antisite defects in and . The stoichiometric composition is at zero atomic fraction; the congruent composition is shown as a dotted line.

Image of FIG. 3.
FIG. 3.

The uniaxial polarization around the domain wall when defect is placed at 0.75 Å away from the wall on the down polarization side. For comparison, the essentially identical for an isolated X-wall are shown in circles; the profiles of the isolated - and -walls are essentially identical.

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/content/aip/journal/apl/98/9/10.1063/1.3560343
2011-03-01
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Shape of ferroelectric domains in LiNbO3 and LiTaO3 from defect/domain-wall interactions
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/9/10.1063/1.3560343
10.1063/1.3560343
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